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    <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
    <title>Test meta config and metachange event support</title>
    <link rel="stylesheet" type="text/css" href="../../resources/css/ext-all.css" />
    <link rel="stylesheet" type="text/css" href="../shared/example.css" />

    <!-- GC -->

    <script type="text/javascript" src="../../ext-all.js"></script>
    <script type="text/javascript" src="../shared/examples.js"></script>

    <script type="text/javascript" charset="utf-8">

    Ext.Loader.setConfig({enabled: true});
    Ext.require([
        'Ext.grid.*',
        'Ext.data.*',
        'Ext.util.*',
        'Ext.form.field.*'
    ]);

    Ext.define('MetaModel', {
        extend: 'Ext.data.Model'
    });

    Ext.onReady(function(){

        var metaStore = Ext.create('Ext.data.Store', {
            model: 'MetaModel',
            autoLoad: true,
            proxy: {
                type: 'ajax',
                url: 'meta-config-basic.php',
                reader: {
                    type: 'json',
                    root: 'data'
                }
            },
            listeners: {
                'metachange': function(store, meta) {
                    grid.reconfigure(store, meta.columns);
                }
            }
        });

        var rowEditing = Ext.create('Ext.grid.plugin.RowEditing', {
            clicksToMoveEditor: 1,
            autoCancel: false
        });

        var grid = Ext.create('Ext.grid.Panel', {
            width: 800,
            height: 300,
            title: 'Meta Grid',
            store: metaStore,
            columns: [],
            renderTo: 'grid-ct',
            tbar: [{
                text: 'Reload Metadata',
                handler: function() {
                    metaStore.load();
                }
            }],
            plugins: rowEditing
        });
    });
    </script>
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    <h1>Basic Meta Configuration</h1>
    <p>This example demonstrates reconfiguring a grid dynamically based on the metadata returned by the server<br>
    (requires PHP). Click the "Reload Metadata" button to see a new randomized column set and data in the grid.</p>
    <p>Note also that the grid is editable on double-click, and that the editors automatically update as well. See below for additional details.</p>

    <div id="grid-ct" style="width:800px;height:300px;"></div>

    <p style="margin-top:30px;">The server response is in this format:</p>
    <pre><code>{
  data: [{ ... }],
  msg: "...",
  total: 99,
  metaData: {
    fields: [{ ... }],
    columns: [{ ... }],
    idProperty: "id",
    messageProperty: "msg",
    root: "data"
  }
}
    </code></pre>
    <p>The store/model automatically read the <code>fields</code> config to reconfigure the data model, but you can add any
    additional custom data into the <code>metaData</code> that you need. In this example we've added a <code>columns</code>
    config that contains a grid-specific column configuration that can be passed to the <code>grid.reconfigure()</code> method
    in the store's load event handler. You could easily add other widget-specific configurations into the response as well.</p>
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